Please wait… 
Please wait while we process your order,
do not press the back button… 
Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

Air Filters

Refine by Car Type
Filter by brand
DISPLAYING 17 to 19 (of 19 products)
1 2
FSPOR911ABX30
Product Information
Product Information
Fabspeed CUP High Performance Airbox Cover.
Replacement for air box cover 93011018400

fabspeed

This air box works with stock OEM air box simply remove the air box cover replace it with the Maxflow cover. Also purchase 911 K&N air filter (gives Hi performance and deep sound).

High performance cover lid works with factory airbox to increase cold air flow and improve power;

FEATURES:
Fits: all Porsche 911 Carrera 2.7L / 3.0L vehicles (1974-1983)
• Constructed from Carbon Fiber reinforced plastic with stainless steel quick release clips.
• Includes two large openings of 5.4" x 5.4" for maximum airflow.
• Rain-resistant design
• Simple and easy 5 minute DIY installation
• All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty.

*Air Filter Not Included

Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

FSPOR911ABX30
91108012302
93011018400

The product you are viewing cross references to these numbers
PM-O318-0
Product Information
Product Information
PMO Induction air cleaner kit with ITG foam filter elements. 

pmo

Fits
Porsche 911 - Air cooled engine with custom ITG racing set-up

Kit Includes
ITG Foam Air Cleaner Element - x 2
Air Cleaner Base x 2
Air Cleaner Hardware Kit

Please see the  PMO vs OE Carb Overview
TK440
Product Information
Product Information
Rain shields for K&N air filters on Weber IDF 44/46. 

fibreglass

Rain hats for K&N air filters IDF 40/44 on Weber carbs.

Made from fiber cloth with a honey-coloured resin.

Fits:
Porsche 911 
Porsche 914-6 


DISPLAYING 17 to 19 (of 19 products)
1 2
Also found on these pages
About Air Filters

Engine Tuning Performance Air Filters – Maximise Airflow and Power for Your Porsche

A performance air filter is one of the most effective and accessible upgrades for improving your Porsche’s engine performance and responsiveness. Designed to increase airflow while providing superior filtration, these filters enhance combustion efficiency, throttle response, and horsepower output — making them essential for both road and track enthusiasts.

At Design911, we offer a premium selection of high-performance air filters and engine tuning intake upgrades for Porsche models. Manufactured using advanced filtration media and precision-engineered housings, these filters deliver improved airflow without compromising protection. Whether you’re upgrading a 911 Turbo, Cayman GT4, or Boxster, our manufacturer-quality performance air filters ensure long-lasting performance and reliability.

What Do Performance Air Filters Do?

Performance air filters allow your Porsche’s engine to breathe more efficiently by reducing airflow restriction and enhancing fuel-air mixture quality.

Core Functions:

  • Increase airflow to the engine for better combustion and power.
  • Filter harmful particles such as dust, dirt, and debris to protect the engine.
  • Improve throttle response and engine smoothness.
  • Enhance engine sound and performance feel.
  • Support long-term engine health by maintaining clean airflow.

By optimising the air intake system, a performance air filter helps your Porsche deliver sharper acceleration, greater efficiency, and improved drivability.

Why Do Air Filters Fail or Degrade?

Air filters operate in a harsh environment, exposed to debris, oil vapour, and temperature extremes. Over time, they can become clogged or damaged, restricting airflow and reducing performance.

Common Causes of Failure Include:

  • Clogging from dirt, dust, or pollen build-up.
  • Oil contamination (especially in reusable filters).
  • Physical damage to the filter material or seals.
  • Improper cleaning or maintenance.
  • Extended service intervals causing reduced airflow.

Symptoms of a failing air filter include reduced engine power, poor fuel economy, hesitation under acceleration, or unusual intake noise. Replacing or upgrading ensures consistent performance and protection.

Why Replace with a High-Performance Air Filter?

Upgrading to a precision-engineered performance air filter restores and enhances your Porsche’s breathing efficiency. These filters are designed to provide a perfect balance between airflow and filtration, delivering measurable performance gains.

Key Benefits:

  • Increases horsepower and torque output.
  • Improves throttle response and fuel efficiency.
  • Provides superior filtration for engine longevity.
  • Constructed from durable, reusable materials.
  • Direct-fit compatibility for Porsche 911, Cayman, Boxster, Panamera and more.
  • Ideal for performance tuning, track driving, or spirited road use.

Replacing restrictive stock filters with high-performance alternatives enhances both performance and reliability — essential for enthusiasts who demand the best from their Porsche.

Highlights:

  • High-performance air filters for Porsche tuning and upgrades.
  • Improved airflow, filtration, and power delivery.
  • Reusable and washable filter options available.
  • Engineered for precision fit and durability.
  • Perfect for classic and modern Porsche performance models.
  • Supports both performance gains and long-term engine protection.

You may also like
Popular Models